1202000020101 has 40 divisors (see below), whose sum is σ = 1852608542400. Its totient is φ = 776163954240.

The previous prime is 1202000020087. The next prime is 1202000020157. The reversal of 1202000020101 is 1010200002021.

It is a de Polignac number, because none of the positive numbers 2^k-1202000020101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202000020201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 840321 + ... + 1763558.

It is an arithmetic number, because the mean of its divisors is an integer number (46315213560).

Almost surely, 2^{1202000020101} is an apocalyptic number.

It is an amenable number.

1202000020101 is a deficient number, since it is larger than the sum of its proper divisors (650608522299).

1202000020101 is a wasteful number, since it uses less digits than its factorization.

1202000020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2604071 (or 2604062 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1202000020101 its reverse (1010200002021), we get a palindrome (2212200022122).

The spelling of 1202000020101 in words is "one trillion, two hundred two billion, twenty thousand, one hundred one".